powerpc, hw_breakpoints: Implement hw_breakpoints for 64-bit server processors

[karo-tx-linux.git] / arch / powerpc / kernel / machine_kexec_64.c

diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 26f9900f773cb2e17634538f1674882c0cd7447b..6c7c546aa1be793b3ae30f9ca0e82f09362aba76 100644 (file)
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -25,6 +25,7 @@
 #include <asm/sections.h>      /* _end */
 #include <asm/prom.h>
 #include <asm/smp.h>
+#include <asm/hw_breakpoint.h>
 
 int default_machine_kexec_prepare(struct kimage *image)
 {
@@ -165,6 +166,7 @@ static void kexec_smp_down(void *arg)
        while(kexec_all_irq_disabled == 0)
                cpu_relax();
        mb(); /* make sure all irqs are disabled before this */
+       hw_breakpoint_disable();
        /*
         * Now every CPU has IRQs off, we can clear out any pending
         * IPIs and be sure that no more will come in after this.
@@ -180,6 +182,7 @@ static void kexec_prepare_cpus_wait(int wait_state)
 {
        int my_cpu, i, notified=-1;
 
+       hw_breakpoint_disable();
        my_cpu = get_cpu();
        /* Make sure each CPU has atleast made it to the state we need */
        for (i=0; i < NR_CPUS; i++) {